On i.MX6 QuadPlus the PRG needs to be clocked in order to pass
through the data access requests from the IDMAC. This call is a
no-op for other all other SoCs.

Signed-off-by: Lucas Stach <l.st...@pengutronix.de>
---
 drivers/gpu/drm/imx/ipuv3-crtc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index 6be515a9fb69..4299c7d07d80 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -55,6 +55,7 @@ static void ipu_crtc_enable(struct drm_crtc *crtc)
        struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
        struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
 
+       ipu_prg_enable(ipu);
        ipu_dc_enable(ipu);
        ipu_dc_enable_channel(ipu_crtc->dc);
        ipu_di_enable(ipu_crtc->di);
@@ -75,6 +76,7 @@ static void ipu_crtc_atomic_disable(struct drm_crtc *crtc,
         */
        drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, false);
        ipu_dc_disable(ipu);
+       ipu_prg_disable(ipu);
 
        spin_lock_irq(&crtc->dev->event_lock);
        if (crtc->state->event) {
-- 
2.11.0

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